Kansas Gov. Sam Brownback has signed a law aimed at keeping the state's courts or government agencies from basing decisions on Islamic or other foreign legal codes, and a national Muslim group's spokesman said Friday that a court challenge is likely.

The new law, taking effect July 1, doesn't specifically mention Shariah law, which broadly refers to codes within the Islamic legal system. Instead, it says courts, administrative agencies or state tribunals can't base rulings on any foreign law or legal system that would not grant the parties the same rights guaranteed by state and U.S. constitutions.

"This bill should provide protection for Kansas citizens from the application of foreign laws," said Stephen Gele, spokesman for the American Public Policy Alliance, a Michigan group promoting model legislation similar to the new Kansas law. "The bill does not read, in any way, to be discriminatory against any religion."

But supporters have worried specifically about Shariah law being applied in Kansas court cases, and the alliance says on its website that it wants to protect Americans' freedoms from "infiltration" by foreign laws and legal doctrines, "especially Islamic Shariah Law."